http://e-repository.perpus.iainsalatiga.ac.id/15944
http://e-repository.perpus.iainsalatiga.ac.id/16194
http://e-repository.perpus.iainsalatiga.ac.id/16211
http://e-repository.perpus.iainsalatiga.ac.id/16292
http://e-repository.perpus.iainsalatiga.ac.id/14948